US Bridges

Harrison CO Rt 18 over Tenmile Creek

Fair

Harrison County, West Virginia · 0.05 MI South Wv Rt 20 · Structure no. 00000000017A065

Built
1979
46 years old
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
104 ft
2 main spans
Daily traffic
1,800
2022 count
Owner
State
State Highway Agency

About this bridge

Harrison CO Rt 18 over Tenmile Creek is a steel continuous stringer/multi-beam or girder carrying Harrison CO Rt 18 over Tenmile Creek in Harrison County, West Virginia. It was built in 1979, so it is 46 years old, older than the West Virginia average of 44.7 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 1,800 vehicles a day, roughly 8% of them trucks, projected to reach 2,465 by 2041. The structure is 104 ft (31.7 m) long and 32 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesHarrison CO Rt 18
CrossesTenmile Creek
Location0.05 MI South Wv Rt 20
RouteCounty Highway 1800
Coordinates39.37357, -80.34773
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating70 US tons
Inventory rating42 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length104 ft (31.7 m)
Longest span50 ft (15.2 m)
Deck width32 ft (9.7 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,800 (2022)
Projected traffic2,465 by 2041
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1.4 million (2023 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Harrison CO Rt 18 over Tenmile Creek built?

It was built in 1979, making it 46 years old in 2025.

What condition is Harrison CO Rt 18 over Tenmile Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in July 2023.

How much traffic does Harrison CO Rt 18 over Tenmile Creek carry?

About 1,800 vehicles per day (2022 count), of which roughly 8% are trucks.

How long is Harrison CO Rt 18 over Tenmile Creek?

The structure is 104 ft (31.7 m) long with a longest span of 50 ft (15.2 m) and a deck 32 ft wide.

Who owns Harrison CO Rt 18 over Tenmile Creek?

It is owned by the State Highway Agency.